Compsodrillia haliostrephis

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Compsodrillia haliostrephis
Compsodrillia haliostrephis 003.jpg
Original image of a shell of Compsodrillia haliostrephis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Compsodrillia
Species:
C. haliostrephis
Binomial name
Compsodrillia haliostrephis
(Dall, 1889)
Synonyms [1]
  • Drillia eucosmiaDall, 1889
  • Stenodrillia eucosmia(W.H. Dall, 1889)

Compsodrillia haliostrephis , common name the spindle drillia, is a species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, the turrids and allies. [1]

Contents

Description

The length of the shell varies between 10 mm and 25 mm.

(Original description) The pure white shell of the holotype contains 8 whorls with a glossy rounded vitreous protoconch of two whorls. The spiral sculpture resembles much as in Compsodrillia eucosmia , a line marginating the suture. There are two or three strong primaries on the upper whorls, five or six on the body whorl, and eight or ten smaller ones on the siphonal canal. The principal primaries are strongly marked and slightly swollen on the summits of the ribs. The secondary spirals, very faint or absent behind the periphery but present in the interspaces in front of it, are finer than in the C. eucosmia, and more numerous. The fasciole is wide, nearly smooth, undulated, and little excavated. The aperture is narrow and long. The notch of the aperture is shallow, the interior not lirate. The inner lip simple shows a thin callus. The siphonal canal is wide, straight and rather long;.The penultimate whorl, contains 7 ribs, narrower and less prominent, as is the varix, than in C. eucosmia [2]

Distribution

C. haliostrephis can be found in the Gulf of Mexico, ranging from the coast of Louisiana south to Brazil. [3]

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References

Compsodrillia haliostrephis, holotype at the Smithsonian Institution Compsodrillia haliostrephis 005.jpg
Compsodrillia haliostrephis, holotype at the Smithsonian Institution
  1. 1 2 Compsodrillia haliostrephis (Dall, 1889) . Retrieved through: World Register of Marine Species  on 5 April 2010.
  2. ↑ Bulletin of the Museum of Comparative Zoology at Harvard College vol. 18 (1889) PD-icon.svg This article incorporates text from this source, which is in the public domain .
  3. ↑ Tunnell, John W., Jr., Felder, Darryl L., & Earle, Sylvia A., eds. Gulf of Mexico Origin, Waters, and Biota, Volume 1: Biodiversity. Texas A&M University Press, 2009. 669.
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